Features:1. Borax has a wide variety of uses, a component of many products.2. It can be used to glaze ceramic crucibles, as a flux in casting and soldering.3. When used in melting of Gold and Silver, Borax helps to dissolve Oxides and other impurities, and produce a fluid borate slag that collectson the surface of the molten metal.4. Adding a proper mount of borax can accelerate melting speed.5. It should be stored in a dry place. Specification:Condition: 100% d NewItem Type: FluxMaterial: BoraxColor: WhiteWeight: Approx. 91g Package List:1 Bag of Borax Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it